See these legally free ebooks:

  • Holy Mass: The Eucharistic Sacrifice and the Roman Liturgy, by Rev. Herbert Lucas, S.J. [1852-1933] (St. Louis: B. Herder; London: Manresa Press, 1914). With Imprimatur.

See also the texts and ebooks listed on the pages Liturgy and Sacraments, and on the Project’s 08 July 2020 post “Worth-it ebook: “The Genius and Timeliness of the Traditional Latin Mass”, by Peter Kwasniewski“, as well as these related texts:

On the Feast of Saint Gregory the Great and Saint Pius X in the Ordinary and Extraordinary Forms of the Roman Rite. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books & eBooks, and the main page of the Catholic eBooks Project.